java - About the choice of design patterns

The scenario is as follows: The customer will send the original message through SDK. After receiving the messa...

From [Javadiscussion group] 2017-06-23 09:12:48 0  3  1168

3DES encryption, how to save the key

When doing a Springboot project, you need to use 3DES encryption, generate a key locally, and send it to anoth...

From [Javadiscussion group] 2017-06-23 09:12:42 0  1  833

java - When an android phone connects to a hotspot that cannot access the Internet, it often automatically switches to other networks. Why not let it switch automatically?

1. Problem: When the Android phone is connected to a hotspot that cannot access the Internet, it often automat...

From [Javadiscussion group] 2017-06-23 09:12:38 0  2  1223

java - Hill sort question

{Code...} Question: while(j > h - 1 && arr[j - h] > temp) In this line of code, j &g...

From [Javadiscussion group] 2017-06-23 09:12:32 0  2  843

java - Problem with crawling images?

I just modified the POM. You can download the source code again. This is the project address of the crawler I ...

From [Javadiscussion group] 2017-06-23 09:12:30 0  1  871

javascript - ajax cannot return to the view when entering the background.

Ajax jumps to the background, but cannot return to the view. What is returned is a whole json array. The metho...

From [Javadiscussion group] 2017-06-23 09:12:24 0  5  652

java - hashmap put method problem

{code...} {code...} {code...} {code...}

From [Javadiscussion group] 2017-06-15 09:22:32 0  1  919

Strange problem when creating index using solrj?

@RequestMapping(value = "/solr", method = RequestMethod.GET) {code...} is to create an index and the...

From [Javadiscussion group] 2017-06-15 09:22:21 0  1  1952

Problems using CompletableFuture in JDK8

{Code...} The result is: {Code...} If the last line of the above code is commented out, the expected result ca...

From [Javadiscussion group] 2017-06-15 09:22:15 0  2  927

java - spring configuration file error

bean.xml is in the src directory

From [Javadiscussion group] 2017-06-15 09:22:10 0  1  699

Java only compiles the modified source files, not the entire file.

Currently, maven is used to compile the code, and changing a Java file will cause the entire project to be rec...

From [Javadiscussion group] 2017-06-15 09:22:06 0  1  1146

java - error when adding cookie in servlet

1. An error is reported when adding cookies: {code...} I checked some error reports on the Internet, most of t...

From [Javadiscussion group] 2017-06-15 09:22:04 0  1  1133

javascript - I want to use the iView vue framework, but I also want to use a jsp template to implement it. How should I do it?

1. I want to use iVew’s vue library; 2. But I want to use jsp templates to implement it, and use templates to ...

From [Javadiscussion group] 2017-06-15 09:21:49 0  1  778

Is sending emails through javamail related to the network environment?

I tried to use javamail to send emails on the Great Wall Broadband at home. It keeps reporting error 554, but ...

From [Javadiscussion group] 2017-06-15 09:21:46 0  2  1038

javascript - vue.js assignments are all two-way binding. How to only assign values ​​but not two-way binding?

Data in vue is two-way bound. But I don't want to bind, I just want to assign the value to vue, but the origin...

From [Javadiscussion group] 2017-06-15 09:21:41 0  3  984